001/*
002 * (C) Copyright 2011 Nuxeo SA (http://nuxeo.com/) and others.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 *
016 * Contributors:
017 *     Wojciech Sulejman
018 *
019 */
020package org.nuxeo.ecm.platform.signature.web.sign;
021
022import static org.jboss.seam.ScopeType.SESSION;
023
024import java.io.Serializable;
025
026import org.apache.commons.logging.Log;
027import org.apache.commons.logging.LogFactory;
028import org.jboss.seam.annotations.Destroy;
029import org.jboss.seam.annotations.Name;
030import org.jboss.seam.annotations.Scope;
031import org.jboss.seam.annotations.Unwrap;
032import org.nuxeo.ecm.platform.signature.api.sign.SignatureService;
033import org.nuxeo.runtime.api.Framework;
034
035/**
036 * Signature service provider
037 *
038 * @author <a href="mailto:[email protected]">Wojciech Sulejman</a>
039 */
040
041@Name("signatureService")
042@Scope(SESSION)
043public class SignatureServiceBusinessDelegate implements Serializable {
044
045    private static final long serialVersionUID = 2L;
046
047    private static final Log log = LogFactory.getLog(SignatureServiceBusinessDelegate.class);
048
049    protected transient SignatureService signatureService;
050
051    @Unwrap
052    public SignatureService getService() {
053        if (signatureService == null) {
054            signatureService = Framework.getService(SignatureService.class);
055        }
056        return signatureService;
057    }
058
059    @Destroy
060    public void destroy() {
061        if (signatureService != null) {
062            signatureService = null;
063        }
064        log.debug("Destroyed the seam component");
065    }
066
067}